audrasjb 57b47f0a09 Help/About: Remove .hidden class when the Help Tab panel is displayed.
It is obviously more logical and semantic to remove the `hidden` class when the panel is displayed. Plus, it prevents from weird behavior occurring when plugins also use the `hidden` class to hide stuff.

Props grabmedia, SergeyBiryukov, helen, sabernhardt, costdev, audrasjb.
Fixes #27697.

Built from https://develop.svn.wordpress.org/trunk@54177


git-svn-id: http://core.svn.wordpress.org/trunk@53736 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2022-09-15 12:29:12 +00:00
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